De or het impulsregeling?

The correct Dutch article is:

de impulsregeling

Rule Words ending in -ing: almost always de. See the rule

How to use impulsregeling

the impulsregelingde impulsregeling
this impulsregelingdeze impulsregeling
that impulsregelingdie impulsregeling
our impulsregelingonze impulsregeling
your impulsregelingjouw impulsregeling
every impulsregelingelke impulsregeling
which impulsregeling?welke impulsregeling?
a big impulsregeling / the big impulsregelingeen grote impulsregeling, de grote impulsregeling